Bug 231023 - ip6_savecontrol_v4 panic
Summary: ip6_savecontrol_v4 panic
Status: Closed FIXED
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-net (Nobody)
Keywords: panic
Depends on:
Reported: 2018-08-30 14:49 UTC by Sean Bruno
Modified: 2018-09-02 21:57 UTC (History)
2 users (show)

See Also:


Note You need to log in before you can comment on or make changes to this bug.
Description Sean Bruno freebsd_committer 2018-08-30 14:49:26 UTC
Since updating to -current at svn r338350, we're seeing this panic twice a day.  I'm having trouble getting the panicstr, but this should point at the location of the issue.

db> bt
Tracing pid 0 tid 100278 td 0xfffff8001430b000
ip6_savecontrol_v4() at ip6_savecontrol_v4+0x26/frame 0xfffffe00955f75f0
ip6_savecontrol() at ip6_savecontrol+0x2c/frame 0xfffffe00955f7640
icmp6_input() at icmp6_input+0x24a2/frame 0xfffffe00955f7800
ip6_input() at ip6_input+0xc43/frame 0xfffffe00955f78f0
netisr_dispatch_src() at netisr_dispatch_src+0xa8/frame 0xfffffe00955f7940
ether_demux() at ether_demux+0x140/frame 0xfffffe00955f7970
ether_nh_input() at ether_nh_input+0x317/frame 0xfffffe00955f79c0
netisr_dispatch_src() at netisr_dispatch_src+0xa8/frame 0xfffffe00955f7a10
ether_input() at ether_input+0x26/frame 0xfffffe00955f7a30
_task_fn_rx() at _task_fn_rx+0x8e6/frame 0xfffffe00955f7b20
gtaskqueue_run_locked() at gtaskqueue_run_locked+0x144/frame 0xfffffe00955f7b80
gtaskqueue_thread_loop() at gtaskqueue_thread_loop+0x98/frame 0xfffffe00955f7bb0
fork_exit() at fork_exit+0x83/frame 0xfffffe00955f7bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00955f7bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
Comment 1 Sean Bruno freebsd_committer 2018-09-02 21:57:39 UTC
I can't seem to get this to happen at r338426

I'll keep an eye out for it as we progress, but I think we'll close it for the time being.